Stair-carpet fastener.



i E. E. GREENE.

STAIR CARPET FASTENER.

APPLICATION FILED MAY 11,1908.

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wane/nu Wan/W. $5 MQA UNITED STATES PATENT OFFICE.

ELMER E. GREENE, OF ALTOONA, PENNSYLVANIA, ASSIGNOR, OF ONE-HALF TO CHARLES HOUSTON, OF ALTOONA, PENNSYLVANIA.

STAIR-OARPET FASTENER.

Patented Oct. 13, 1908.

To all whom it may concern:

Be it known that I, ELMER E. GREENE, a citizen of the United States, residing at Altoona, in the county of Blair and State of Pennsylvania, have invented certain new and useful Improvements in Stair-Carpet Fasteners, of which the following is a specification.

The present invention relates to carpet fasteners, and has specially in view an improved form of stair rod for retaining carpet or the like in position on stairs.

With the above object in view the invention contemplates the employment of a rod adapted to snugly fit the corner formed by the tread and riser of the stairs with which cooperate end caps provided with wedging slots adapted to engage with suitable fastenings carried by the stairs for retaining the rod and end caps in a carpet-holding position.

In carrying out the invention various changes may be made in the details and structural arrangement of the same, a few referred and practical embodiments of w ich are shown in the accompanying drawings, in which,-

Figure 1 is a perspective view of the improved stair rod showing the same as it appears in use. Fig. 2 is a perspective view of one end of the rod shown in Fig. 1, a part of the end cap being broken away to show the engagement therebetween and the fastening screw. Fig. 3 is a sectional view through one of the caps and showing a preferred form of fastening screw;

Like characters of reference designate corresponding parts.

The improved stair rod 10 forming the subject of the present invention is preferably of a substantially triangular shape in crosssection so as to more readily adapt it for a snug fit in the corner formed by the junction of the tread l1 and riser 12 of the conventional stairs 13, as shown in Fig. 1 of the accompanying drawings. Said rod preferably consists of a length of wood or other material, extending entirely across the usual carpet 14 which it retains in position on the stairs, said rod being held insuch'carpet retaining position by the metallic caps 15 which are of a cross-sectional shape corresponding to the rod, and which, have an inclined wedging slot 15 formed in their rear wall 16, the

lower end 17 of said wedging slot being curved downward as at 18, and terminating at the bottom. 19 of the cap, at which point an enlarged opening 20 is formed for the entrance of a fastener screw 21 which is carried by the riser 12 of the stairs. Said screw 21 is provided with the usual head 22, and threads 23, and to revent the same being driven too far into t e said riser 12, it is provided with a guard shoulder 24 which insures of the head of the screw always being far enough beyond the stair riser to permit of the same being placed within the bottom opening in the end cap, and which forms the entrance to the wedging slot.

From the foregoin description it will b seen that, assuming t e carpet to be in position on the stairs, and the rods held snugly thereon in the usual temporary manner, when the heads of the fastening screws are admitted through the bottom opening forming the entrance to the wedging slot,a movement of the said cap tending to force it upon the end of the rod, will cause said fastening screw to follow the path of the wedging slot until it reaches the end thereof, at which time the cap will have been forced upon the end of the rod, and the movement of the cap along the screw will, owing to the upward inclination of the said slot, cause the same to draw the rod downward and assume a tight fit within the corner formed by the tread and the riser of the stairs. A reversal of the movement of the end cap described, will cause the same to release the rod whereupon the same may be readily removed.

Claim.

A fastening device for stair rods comprising the rod, fastener screws carried by the stair, and end caps telescopin over the ends of the rod and provided wit an enlarged entrance opening for the screw fasteners and from which extends an inclined wed ing slot, whereby when the said caps are slid a ong said fastener screws and onto the ends of the rod, the same will be drawn downwardly.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

ELMER E. GREENE.

Witnesses:

N. E. GEE, CHARLES HoUsToN. 

